Cotter pin



FIG. 1 is a perspective view of a cotter pin according to our invention;

FIG. 2 is a front elevation thereof;

FIG. 3 is a rear elevation thereof;

FIG. 4 is right side elevation thereof;

FIG. 5 is left side elevation thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a perspective view of the cotter pin according to our invention in the use environment; and,

FIG. 9 is a perspective view of a prior art cotter pin in the use environment.

The broken line showings of castle nuts are for the purpose of illustrating environment and form no part of the claimed design. 

CLAIM The ornamental design for a cotter pin, as shown and described. 